code: def data_source_client(self) -> StateDataSourceClient:
      return self.client
  
file_path: ray/dashboard/modules/log/log_manager.py
imports: import logging
  import re
  from collections import defaultdict
  from typing import List, Optional, Dict, AsyncIterable, Tuple, Callable
  from ray.dashboard.modules.job.common import JOB_LOGS_PATH_TEMPLATE
  from ray.util.state.common import GetLogOptions, protobuf_to_task_state_dict, DEFAULT_RPC_TIMEOUT
  from ray.util.state.exception import DataSourceUnavailable
  from ray.util.state.state_manager import StateDataSourceClient
  from ray._private.pydantic_compat import BaseModel
  from ray.dashboard.datacenter import DataSource
label_desc: Use image node_id 2 for calling the LogsManager obj's underlying member method code with example usage: obj.data_source_client() and returns: self